Gaepet



UNITED STATES PATENT OEEICE.

WALTER J. DREW, OF GRANDVILLE, ASSIGNOR TO MICHIGAN CARPET SWEEPER MANUFACTURING COMPANY, OF GRAND RAPIDS, MICH.

SPECIFICATION forming part of Letters Patent No. 229,389, dated Julie 29, 1880.

Application iiled March 29, 1880. (No model.)

To all whom it may concern:

Be it known that I, WALTER J. DREW, of Grandville, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Carpet-Sweepers; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

The nature of my invention consists in the construction and arrangement of a carpetsweeper, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, in which- Figure 1 is a longitudinal vertical section of my invention. Fig. 2 is a cross-section ot the same with the brush removed. Fig. 3 is a cross-section, showing the gearing 5 and Figs. 4, 5, and 6 are detail views.

A represents the box or casing of my carpet-sweeper, having its bottom entirely open. Lengthwise in the center of this box or casing is the revolving brush B, one end of which is placed in a stationary ring, a, while the other end has a journal, b, attached to one end of the casing. On this end of the brush is a friction wheel or roller, C, against the edges of which work two rubber-covered wheels, D D, one on each side, as shown in Fig. 3. Each wheel D has its journal-bearings in a frame, F, which is movable in a stationary frame, E, the journals of the wheel passing into slots e in said stationary frame. These frames E are secured to theend ot' the casing by screws or any other suitable means in an inclined position, so that the weight of the machine may aid the springs G to keep the wheels at the higher or inner end of the slots, or, in other words, the wheels project slightly below the bottom of the casing, and the weight of said casing will therefore cause the journals ofthe wheels to slide along the inclined slots to their highest point. Y

G is a spring placed between the two frames E and F to press the latter inward, so that the Wheel D may be held in contact with the roller C. By this arrangement of springs and gearing the wheels cannot get out of line and twist sidewise, as is liable to be the case whenone spring is employed in each side of the wheel. Any pressure on the surface of the wheels causes them to move back in squarely and evenly.

In the ends of casing A, on each side of the brush B, is pivoted a dust-pan, H, the inner edge or' which forms the inclined dust-board I. This dust-board is usually made stationary in carpet-sweepers and separate from the revolving pans, and is hence much in the way for cleaning the machine of thread, tc., besides hindering in taking out the brush. These objections are overcome by making the dustboard a part ofthe workin g-pan.

At one end the pans H are provided with a slot, x, the slot in one pan being above and the other below the pivot, and in these slots work pins 'L' t', projecting from a sliding plate or lever, J. This plate has also another pinfh, projecting through a horizontal slot, y, in the end of the box or casing A. By this arrangement I get a horizontalmovement of the plate J on a line parallel with the bottom of the case, accomplishing the dumping of the pans in a much better and easier manner than where the plate describes a semicircle, as in some sweepers, and making it unnecessary to use a spring or other device to keep the pans in position.

K is a socket for the handle, which isforked at its lower end to receive the arms or bails L the lug m on the bail will strike the plate R and rotate it, and the pin It, being held in the slot n, will be pushed along the slot y, and by this means the plate or lever J is moved and vthe pans dumped. This may be done at arms7 length or out of a door or window, thus pre- IOO venting the dust from being blown on the person using the machine and rendering it more convenient and handy.

In other machines of this kind the connec- 5 tion between the pans for lreversing them act on the principle of a lever, it being pivoted to a certain point on the end of the pan and moves on a circle around the hanging pivot of the pan, so that when closed the leverage is reio duced so lovs7 that it is difficult to hold the pans in place, and requires a strong spring to do so.

My device acts on the principle of an inclined plane, reversing the power of leverage over the pan.

- 15 When the pans are closed the pivots recede from the centers or hanging pivots of the pans, and are at the farthest distance from them, thus giving the most leverage and requiring the least power to hold them firmly 2o closed.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a carpet-sweeper, the combination of k25 revolving brush B and inclined stationary frames E E with sliding frames F F, carrying rollers D D, arranged to gravitate toward each other, substantiallyas and for the purpose set forth.

pivoted pans H H, sliding connecting-plate J, having pin h, pivoted segmental plate R, having notch n, and the pivoted bail L,with its pin or lug m, all constructed and arranged to operate substantially as and for the purpose set forth.

3. The within-described carpet-sweeper, consisting of case A, revolving brush B, frictionroller C, wheels D D, stationary frame F F, inclined frames E E, bail L, segmental plate R, and plate J, all constructed and arranged to operate as set forth.

In vtestimony that I claim the foregoing as my own I affix` my signature in presence of two witnesses.

WALTER J. DREW.

Witnesses J oHN W. DAY, C. E. KELLoGe.

2. The combination, in a carpet-sweeper, of i 3o v 

